Bolt and nut thread gauge



FIG. 1 is a perspective view of a bolt and nut thread gauge showing mynew design;

FIG. 2 is a front view;

FIG. 3 is a back view;

FIG. 4 is a bottom view;

FIG. 5 is a top view;

FIG. 6 is an end view along line 6--6 in FIG. 2; and,

FIG. 7 is an end view taken along line 7--7 in FIG. 3.

The ornamental design for a bolt and nut thread gauge, as shown anddescribed.